As everyone knew, no matter how powerful a Nen Beast's ability was, maintaining it required a Nen user to supply it with Nen Aura.
That was also why Emission Nen Abilities were best suited to developing Nen Beasts: no Nen Aura was lost in the process of supplying them.
There was, however, one exception: parasitic Nen Beasts. These special Nen Beasts used their hosts' own Aura to activate their abilities, and most belonged to Conjuration.
Their defining characteristic was that their hosts could not control the Nen Beasts themselves. Ordinary people might only feel inexplicably exhausted. A prime example was Mumuzawa, who had raised a death flag and then died in a flash.
In the manga's Succession War arc, the Nen Beasts possessed by princes such as Mumuzawa, as well as the king of Kakin, were awakened through the Seed Urn
ritual, and every last one belonged to this type.
When the Mumuzawa Doll clinging to Dio had turned into a Nen Beast, he had initially thought she had simply become a parasitic type.
And he had assumed he could not feel any Nen Aura being consumed merely because he recovered it too quickly.
That was perfectly normal. Dio maintained the Atmosphere Creator's existence every second of every day, and it consumed less Nen Aura than he recovered each second.
This was also a restriction: requiring him to keep his Nen Beast summoned permanently, without being able to dismiss it himself, had granted it the ability to regenerate almost instantly in the same spot after being dispersed.
In other words, the Atmosphere Creator's inability to disappear was not an ability, but a restriction.
He had never actually encountered anyone dispersing his Nen Beast, though, since Dio usually liked to keep it floating high in the sky.
But it would be